One of the technologies widely used in the world, along with fluxes, is the technology of degassing molten aluminum and its alloys by processing the melt with rotating rotor with inert gas purging.

1. Operation principle:

A special rotor is immersed in the aluminum melt which starts to rotate at a speed of 350 – 600 rpm, and an inert gas (most often nitrogen) is purged through it. The processing time is from several minutes to 10 minutes. The special shaped rotor with channels ensures uniform distribution of inert gas bubbles in the melt. The rotor material based on SiC/C is specially designed for long-term operation in the aluminum melt. On average, the inert gas consumption (if nitrogen) is 20 liters of nitrogen per minute for every 100 kg of the aluminum melt. So, to process 1,000 kg of the aluminum melt, you should process for 10 minutes at a flow rate of 20 liters of nitrogen per minute.

2. This technology enables the following:

·Degassing effectively by hydrogen removal from the aluminum melt. The lowest possible hydrogen level is achieved using this technology. The operation principle is based on hydrogen diffusion from the melt into inert gas bubbles;